Urn attachment



FIG. 1 is a front view of a urn attachment showing my new design;

FIG. 2 is a rear view of the urn attachment;

FIG. 3 is a left side view of the urn attachment, a right side view being a mirror image thereof;

FIG. 4 is a top view of the urn attachment; and,

FIG. 5 is a bottom view of the urn attachment.

The broken lines are for illustrative purposes only and are not intended to form part of the claimed design. 

CLAIM The ornamental design for a urn attachment, as shown and described. 